From patchwork Wed Aug 23 06:08:50 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Z.Q. Hou" X-Patchwork-Id: 9916647 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C7B2760327 for ; Wed, 23 Aug 2017 06:26:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9E302895B for ; Wed, 23 Aug 2017 06:26:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AEC8C2895F; Wed, 23 Aug 2017 06:26:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 29B072895B for ; Wed, 23 Aug 2017 06:26:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753277AbdHWG0q (ORCPT ); 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dmarc=fail action=none header.from=nxp.com; Received-SPF: Fail (protection.outlook.com: domain of nxp.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Received: from tx30smr01.am.freescale.net (192.88.168.50) by BN1BFFO11FD035.mail.protection.outlook.com (10.58.144.98) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1341.15 via Frontend Transport; Wed, 23 Aug 2017 06:26:43 +0000 Received: from titan.ap.freescale.net ([10.192.208.233]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id v7N6QOgD007516; Tue, 22 Aug 2017 23:26:39 -0700 From: Zhiqiang Hou To: , , , CC: , , , , , , Hou Zhiqiang Subject: [PATCHv4 3/9] PCI: layerscape: add class code and multifunction fixups for ls1021a Date: Wed, 23 Aug 2017 14:08:50 +0800 Message-ID: <20170823060856.9387-4-Zhiqiang.Hou@nxp.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170823060856.9387-1-Zhiqiang.Hou@nxp.com> References: <20170823060856.9387-1-Zhiqiang.Hou@nxp.com> X-EOPAttributedMessage: 0 X-Matching-Connectors: 131479432041434016; 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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN2PR03MB2270 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Hou Zhiqiang The current code depends on these 2 fixups implemented in bootloader, this patch is to resolve the dependence. Signed-off-by: Hou Zhiqiang --- V4: - no change drivers/pci/dwc/pci-layerscape.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/dwc/pci-layerscape.c index c16940044ed6..3aa34214643c 100644 --- a/drivers/pci/dwc/pci-layerscape.c +++ b/drivers/pci/dwc/pci-layerscape.c @@ -134,6 +134,11 @@ static int ls1021_pcie_host_init(struct pcie_port *pp) dw_pcie_setup_rc(pp); + iowrite32(1, pci->dbi_base + PCIE_DBI_RO_WR_EN); + ls_pcie_fix_class(pcie); + ls_pcie_clear_multifunction(pcie); + iowrite32(0, pci->dbi_base + PCIE_DBI_RO_WR_EN); + ls_pcie_drop_msg_tlp(pcie); return 0;